Required Mods

"A tropical ocean paradise loved by divers for its colorful coral and fish and more recently by scientists for its unique marine life. With plenty of large and small fish, this is an ideal diving location."

Hi, I’m Catherine and this is my first Sims 3 world! My intention was to create a smaller world that can be used to play the Island Paradise expansion pack in a more compact way. (It’s technically medium-sized, but a lot of that is water.) I based this world on the area of the same name in the game Endless Ocean: Blue World, granted with quite a lot of creative liberties taken. Gatama Atoll is situated in the fictional country of the Pelago Commonwealth, which is in Micronesia.

Isla Paradiso is stunning and there are great fixes out there, but I still prefer to play smaller worlds for the sake of performance and convenience. So here’s a small world meant for boats, houseboats, resorts, lifeguards, merfolk and of course diving!

While Gatama Atoll now features a town, the original area is still for diving, with 5 dive lots based on some of the areas in the game. On the islands surrounding the dive lots are small nature areas similar to those found in the original Gatama Atoll — you can find animals here.

Nearby is Nineball Island, a relaxing and homey place, ready for divers to move in and make it their hub of operations. This is also an area from Endless Ocean: Blue World.

The town features all the base game rabbit holes as well as a few community lots and the Festival Grounds, and empty lots for expansion. Additionally, there are houses situated right near the water, and ports for houseboats. The empty 64x64 lot is intended for you to build your own resort (or place one you downloaded), though of course you can place your resort elsewhere if you wish.

Like Isla Paradiso, Gatama Atoll has mysterious islands surrounded by fog, waiting for discovery. Only a few, though; one unlocked through diving, one through resorts, and one through lifeguarding (exact way to get each island will be included below).

Gatama Atoll requires Island Paradise, Seasons, Pets, and Sunlit Tides. I specifically made this world with blam’s ea store files, as my decrapped sims3packs did not work in CAW. Therefore, I believe this means you also need the Sunlit Tides store files to be non-decrapped in order to play this world. My recommendation is to just pick them up from blam.

This world definitely isn’t perfect, considering it was made by a complete novice. Here are some disclaimers:

The landscaping is relatively simple, both because of performance concerns and because I lack skill in this area.

The only lot I made is Nineball Island + I edited the houseboat. The other lots are all from Sunlit Tides or Isla Paradiso.

The world is also definitely on the smaller side and doesn’t have room for a lot of extra lots.

Also, you need to be farther out in the ocean to snorkel, you can’t be close to the beach.

The notifications when your sim levels up their diving skill are gonna say the Isla Paradiso diving spot names (e.g "Rocky Reef"), not the Gatama Atoll diving spot names. Please refer below for a proper guide on when you can access each diving spot.

This world was made in version 1.67 (Steam)

Required mods

NRaas register - with this mod, ban horses, unicorns, paparazzi and deer for a smoother experience. You don't want that stuff in this world.

Dive cave reset fix - I used one and only one dive cave in this world. With this mod, you need to reset that dive cave when you see it, just once. Please do not forget to reset the cave so that your sim doesn't get reset when trying to enter.

Interact on sloped terrain - The world is kinda curvy so I think having this is a good idea.

Recommended additions

Surf’s Up Sun and Fun Collection - so your sim can surf, and also have some cute CAS stuff.

Sun, Surf and Sand - cute beachy buildbuy stuff.

Island Villa - ditto^

Tiki dining room - tiki buildbuy stuff

Tiki living room - ditto^

Tiki outdoor living - ditto^

Yoga mod by twinsimming - for the tropical paradise zen.

Mermaid Power mod by xantak22 - improves mermaid gameplay.

4t3 Island Living conversions - look around for some if you need more buildbuy or clothes.

Feel free to do whatever you want with this world! I have no conditions. You’re welcome to tag me so I can see, too :)

Download 🐠

Notes

Here is when each dive spot is unlocked:

Atoll Gate: available at level 2 of the diving skill

Spring Garden: available at level 4 of the diving skill

Doughnut Reef: Available at level 6 of the diving skill

Blue Cliff: Available at level 8 of the diving skill

Cabbage Patch: Available at level 10 of the diving skill

Here is how to get each hidden island:

Diving island: At level 10 of the diving skill, explore the cave in Cabbage Patch. Reset the cave before going in.

Lifeguard island: Rescue 35 sims as a lifeguard.

Resort island: Have a 5-star resort.